tetracyclic antidepressant

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A class of antidepressant drugs, the best known being mianserin, that are used to treat depression, their mechanism of action being poorly understood. Compare monoamine oxidase inhibitor (MAOI), selective serotonin reuptake inhibitor (SSRI), St John's wort, tricyclic antidepressant. [So called because they have four fused rings in their molecular structures]

Subjects: Psychology.

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